added contrib app for filer

also, two smaller fixes

cmsplugin_text_ng/cms_plugins.py

@@ -35,10 +35,6 @@ def get_form(self, request, obj=None, **kwargs):
         else:
             return super(TextPluginNextGeneration, self).get_form(request, obj, **kwargs)
 
-    def get_readonly_fields(self, request, obj=None):
-        if obj and obj.pk:
-            return []
-
     def save_model(self, request, obj, form, change):
         super(TextPluginNextGeneration, self).save_model(request, obj, form, change)
         for label, variable in get_variables_from_template(obj.template.path).items():
@@ -61,7 +57,8 @@ def render(self, context, instance, placeholder):
         variables = get_variables_from_template(t)
         for label, variable in variables.items():
             model_type = variable['type']
-            context[label] = model_type.objects.select_related(*model_type.select_related).get(text_ng=instance, label=label).value
+            var, created = model_type.objects.select_related(*model_type.select_related).get_or_create(text_ng=instance, label=label)
+            context[label] = var.value
         context.update({'body': mark_safe(t.render(context))})
         return context
 

cmsplugin_text_ng/contrib/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+

cmsplugin_text_ng/contrib/textng_filer/__init__.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+

cmsplugin_text_ng/contrib/textng_filer/models.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+from django.utils.translation import ugettext_lazy as _
+
+from filer.fields.image import FilerImageField
+
+from cmsplugin_text_ng.models import TextNGVariableBase
+from cmsplugin_text_ng.type_registry import register_type
+
+class TextNGVariableFilerImage(TextNGVariableBase):
+    value = FilerImageField(null=True, blank=True, verbose_name=_('value'))
+
+    class Meta:
+        verbose_name = _('image')
+        verbose_name_plural = _('images')
+
+register_type('image', TextNGVariableFilerImage)

cmsplugin_text_ng/models.py

@@ -55,4 +55,8 @@ class Meta:
 class TextNGVariableText(TextNGVariableBase):
     value = models.TextField(_('value'), null=True, blank=True)
 
+    class Meta:
+        verbose_name = _('text')
+        verbose_name_plural = _('texts')
+
 register_type('text', TextNGVariableText)